package com.soulless;

/**
 * @author zenglei
 * @Description 功能描述
 * @date 2020/09/07 15:32
 */
public class Proxy implements Subject {

    private RealSubject realSubject;

    public void request() {
        if (realSubject == null) {
            realSubject = new RealSubject();
        }
        preRequest();
        realSubject.request();
        postRequest();
    }

    public void preRequest() {
        System.out.println("访问真实主题之前的预处理。");
    }

    public void postRequest() {
        System.out.println("访问真实主题之后的后续处理。");
    }
}
